Indicated for the excision of polyps in the nasal passageways and in sinuses for which access has been previously established.
Device Story
The Laurimed PolypVac Microdebrider is a single-use, sterile, hand-held surgical instrument designed for cutting and aspirating polyp tissue during nasal and sinus procedures. The device features a 3.5 mm shaver blade with a rounded tip and a side-facing cutting window with serrated edges. It operates by connecting to a user-supplied vacuum pump and irrigant source; the vacuum draws polyp tissue into the cutting window where it is incised by the blade. The device is manually positioned by a surgeon under endoscopic guidance and activated via a hand-piece trigger. It is intended for use by ENT surgeons in a clinical or surgical setting. By providing a dedicated, disposable tool for tissue resection, the device facilitates the removal of polyps while minimizing the risk of cross-contamination associated with reusable instruments. The inclusion of a low-speed motor and specific blade geometry aims to improve surgical control and reduce clogging during the procedure.
Clinical Evidence
No human clinical data. Evidence consists of in-vitro bench testing and cadaver model studies. Bench testing compared aspiration rates and clogging frequency against the predicate using simulated polyp tissue; results showed non-inferiority and a trend toward reduced clogging. Cadaver study involved three board-certified ENT surgeons performing polypectomies; results demonstrated non-inferiority in the degree of complete polyp removal (grams of unresected tissue) and similar post-resection site grading by blinded reviewers.
Technological Characteristics
Single-use, sterile, hand-held microdebrider. Materials: Stainless steel blade/window. Dimensions: 3.5 mm outer diameter, 12 cm shaft length. Mechanism: Vacuum-assisted mechanical cutting with side-facing window. Energy: Electric motor (low-speed). Connectivity: Connects to external vacuum pump and irrigant source. Sterilization: E-beam radiation. Interface: Hand-piece trigger activation.
Indications for Use
Indicated for the excision of polyps in the nasal passageways and sinuses where access is established.
Regulatory Classification
Identification
An ear, nose, and throat electric or pneumatic surgical drill is a rotating drilling device, including the handpiece, that is intended to drive various accessories, such as an ear, nose, and throat bur (§ 874.4140), for the controlled incision or removal of bone in the ear, nose, and throat area.
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### Laurimed LLC
# 510(k) Summary
This summary of 510(k) safety and effectiveness information is submitted in accordance with the requirements of SMDA 1990 and 21 CFR 807.92.
#### A. Name, Address, Phone and Fax Number of Applicant
Laurimed LLC 500 Arguello Street, Suite 100 Redwood City, CA 94063 Phone: (650) 587-5296 (650) 587-3823 Fax:
#### B. Contact Person
Nancy Lincé, RAC Regulatory Affairs Consultant Lincé Consulting Phone: (650) 759-6186 nlince@linceconsulting.com
Alternate Contact: Diana DeGregorio Lincé Consulting Regulatory Affairs Consultant (925) 980-8047 ddegregorio@linceconsulting.com
#### C. Date Prepared
September 27, 2013
### Device Name D.
| Trade Name: | Laurimed PolypVac Microdebrider |
|----------------------|---------------------------------------------------|
| Common Name: | Microdebrider |
| Classification Name: | Ear, nose, and throat electric or pneumatic drill |
#### E. Device Classification
| Classification: | 21 CFR §874.4250 |
|-----------------|------------------|
| Product Code: | ERL |
| Device Class: | Class II |
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#### F. Predicate Devices
The Laurimed PolypVac Microdebrider is substantially equivalent to the Medtronic Xomed, Inc., XPS 3000 System (K041413).
#### G. Device Description
The Laurimed PolypVac Microdebrider is intended for cutting and aspirating polyp tissue during sinus and nasal procedures. The system consists of a hand-held cutting device and device cleaner.
The PolypVac Microdebrider is supplied sterile and is single-use and disposable.
#### H. Intended Use
Indicated for the excision of polyps in the nasal passageways and in sinuses for which access has been previously established.
#### 1. Technological Comparison
The Laurimed PolypVac Microdebrider has similar features as compared to the predicate devices in the table below.
| Manufacturer | Medtronic Xomed, Inc. | Laurimed LLC | |
|-------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------|--|
| Model Name | XPS 3000 System<br>(with RAD12 & RAD40 shaver blades) | PolypVac Microdebrider | |
| 510(k) Number | K041413 | TBD | |
| Indications for Use | Intended for the incision and removal of<br>soft and hard tissue or bone in general<br>otorhinolaryngology, head and neck, and<br>otoneurological surgery.<br>Sinus Indications include septoplasty,<br>removal of septal spurs, polypectomy,<br>antrostromy.<br>ethmoidectomy/specnoethmoidectorny,<br>frontal sinus trephination and irrigation,<br>frontal sinus drill out, endoscopic DCR,<br>trans-spheniodal procedures, maxillary<br>sinus polypectomy, circumferential<br>maxillary antrostomy, choanal atresia,<br>sphenoidotomy, and medial, lateral, and<br>posterior frontal sinusotomy | Indicated for the excision of polyps in the<br>nasal passageways and in sinuses for<br>which access has been previously<br>established. | |
| Product Code | ERL | Same | |
| Manufacturer | Medtronic Xomed, Inc. | Laurimed LLC | |
| Model Name | XPS 3000 System<br>(with RAD12 & RAD40 shaver blades). | PolypVac Microdebrider | |
| 510(k) Number | K041413 | TBD | |
| Mechanics of<br>Action | Cutting elements moving inside an open<br>window with suction | Same | |
| Anatomical sites | Head, neck, ear, nose (including the<br>sinuses), and throat | Nose (including sinuses) | |
| Design Features | 3.5 mm Shaver Blade<br>Rounded tip<br>Side-facing cutting window with<br>serrated edges<br>Fixed curves<br>Rotatable<br>Hand-piece<br>Houses electrical motor<br>Foot-switch activated<br>Proximal end attaches to user-<br>supplied vacuum and irrigant<br>sources<br>Console<br>Electrical power source | 3.5 mm Shaver Blade<br>Rounded tip<br>Side-facing cutting window with<br>serrated edge<br> | |
| Mechanism of<br>Action | User-supplied vacuum pump draws polyp<br>tissue into side-facing cutting window,<br>tissue incised by blade | User-supplied vacuum pump draws polyp<br>tissue into side-facing cutting window,<br>tissue incised by blade | |
| Components | Hand-piece<br>Removable Distal Shaft with Cutting<br>Element<br>Device Cleaner<br>Console & Footswitch | Hand-piece with Integrated Distal Shaft<br>with Cutting Element<br>Device Cleaner | |
| Safety Features | Blunt Tip, Side-Cutting Window, Activation<br>switch | Same, with the addition of a low-speed<br>motor | |
| Sterile Packaging | Tyvek/Mylar Pouch for sterile / disposable<br>distal shafts | Same | |
| Sterilization<br>Method<br>External Device<br>Compatibility | Ethylene Oxide (EtO) for sterile /<br>disposable distal shafts<br>Endoscope<br>Vacuum pump<br>Sterile Irrigant bag<br>Collection Canister | E-beam radiation<br>Endoscope<br>Vacuum pump<br>Sterile Irrigant syringe or bag | |
| Biocompatible for<br>Intended Use | Yes | Same | |
| Blade / window<br>material | Stainless Steel | Same | |
| Shaft Outer<br>Diameter | 3.5 mm (RAD 12 & 40 blades) | 3.5 mm | |
| Shaft Length | 11 cm (RAD 12 & 40 blades) | 12 cm | |
| Angle of Distal Tip<br>User Interface | 12° - 40° (RAD 12 & 40 blades)<br>Activation switch (footswitch) | 0° - 45°<br>Activation switch (hand-piece trigger) | |
| Human Factors | User holds the hand-piece to insert and<br>position device at intended surgical site | Same | |
| Contraindications | None | Same | |
| Method of<br>Introduction | Manual placement under endoscopic<br>guidance | Same | |
| Function. | Device is positioned at intended site and<br>switch activated to begin resection. | Same | |
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.
·
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The technological characteristics and principals of operation of the Laurimed PolypVac Microdebrider are substantially equivalent to the noted predicate device.
#### J. Summary of Non-Clinical Data
The Laurimed PolypVac Microdebrider performance characteristics were evaluated in the following in-vitro bench studies:
- . Dimensional Verification Testing
- . Tensile Testing
- . Flow Rate Testing
- . Device Durability
- . Shaft Malieability and Durability
- . Bench Top Performance*
- . Leakage & Syringe Compatibility
- . Cadaver Predicate Comparison **
- . Biocompatibility Testing
- o Cytotoxicity
- o Sensitization
- o Irritation
- . Sterilization Validation
- . Packaging Validation
- Shelf Life .
# *Bench-top Performance Testing
Bench Top Performance Testing using the PolypVac Microdebrider and the Xomed XPS 3000 with RAD40 blades was completed to compare the aspiration rate performance of the subject and predicate device using simulated polyp tissue models. Non-inferiority was demonstrated based on resection rates in two sample tissue models. Data collected on clogging trended in favor of the PolypVac Microdebrider, where the device clogged less frequently than the Xomed XPS 3000 blades. Therefore, the results of this testing demonstrate that the PolypVac Microdebrider is substantially equivalent to the Xomed predicate in terms of aspiration rates in simulated polyp tissue models representing the spectrum of human polypoid tissue.
## **Cadaver Predicate Comparison Testing
Cadaver Predicate Comparison testing using the PolypVac Microdebrider and the Xomed XPS 3000 with RAD12 and RAD40 blades was completed to compare the performance when used by three (3) independent board-certified ENT surgeons to excise simulated attached sinonasal polyps from worst-case accessible locations in a cadaver model. Non-inferiority was demonstrated based on the degree of complete polyp removal (as measured by grams of unresected tissue). Post-resection images of the attachment site were graded by a blinded reviewer and found to be similar for the PolypVac Microdebrider (average: 1.08) and Xomed XPS 3000 (average: 1.00). Therefore, the results of this testing demonstrate that the PolypVac Microdebrider is substantially equivalent to the Xomed predicate when used to navigate to and resect worst-case polyps during simulated polypectomy procedures in a cadaver model.
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Results of the non-clinical testing demonstrate that the materials chosen, the manufacturing process, and design of the Laurimed PolypVac Microdebrider meet the established specifications necessary for consistent performance during its intended use. This testing demonstrates the Laurimed PolypVac Microdebrider is safe and is substantially equivalent to the named predicate.
#### K. Summary of Data
The Laurimed PolypVac Microdebrider has been carefully compared to a legally marketed device with respect to intended use and technological characteristics. In addition, non-clinical testing, including comparative testing, was conducted to validate the performance of the device and ensure the Laurimed PolypVac Microdebrider functions as intended and meets design specifications. The comparison and non-clinical performance testing results demonstrate that the Laurimed PolypVac Microdebrider is substantially equivalent to the predicate device for its intended use and does not raise new issues of safety or effectiveness.
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DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/5/Picture/1 description: The image shows a logo for the Department of Health & Human Services - USA. The logo features a stylized emblem with three curved lines resembling a person with outstretched arms. The emblem is surrounded by the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged in a circular pattern.
December 23, 2013
Public Health Service
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
Laurimed, LLC % Ms. Nancy Lincé, RAC Lincé Consulting 8 Crow Canyon Court, Suite 205 San Ramon, CA 94583
Re: K133133
Trade/Device Name: PolypVac Microdebrider Regulation Number: 21 CFR 874.4250 Regulation Name: Ear, nose, and throat electric or pneumatic surgical drill Regulatory Class: Class II Product Code: ERL Received: September 27, 2013 Dated: September 30, 2013
Dear Ms. Lincé:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies.
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Page 2 - Ms. Nancy Lincé
You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Small Manufacturers, International and Consumer Assistance at its tollfree number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. Also. please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm.
Sincerely yours,
Tina Kiang -S 2013.12.23 15:54:36 -05'00' for Malvina B. Eydelman, M.D.
Director Division of Ophthalmic and Ear, Nose and Throat Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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| Laurimed LLC | Traditional 510(k) Notification<br>PolypVac Microdebrider |
|--------------|-----------------------------------------------------------|
|--------------|-----------------------------------------------------------|
Indications for Use Statement
| 510(k) Number (If known): | K133133 |
|---------------------------|------------------------|
| Device Name: | PolypVac Microdebrider |
Indications for Use:
Indicated for the excision of polyps in the nasal passageways and in sinuses for which access has been previously established.
| Prescription Use | X | Or<br>(per 21 CFR 801.109) | Over-The-Counter Use |
|------------------|---|----------------------------|----------------------|
|------------------|---|----------------------------|----------------------|
PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NEEDED
Concurrence of CDRH, Office of Device Evaluation (ODE)
Image /page/7/Picture/1 description: The image shows the name "Sageev George -S" in bold font on the first line. The second line shows the date and time "2013.12.20 16:51:09-05'00'" also in bold font. The text appears to be a timestamp or label associated with an image or document.
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.